Boiling point :124-128 °C/10 mmHg
Density :0.933 g/mL at 25 °C
refractive index :n20/D 1.5382
form :liquid
color :colorless
Sensitive :air sensitive
λmax :260nm(Cyclohexane)(lit.)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H250 Catches fire spontaneously if exposed to air Pyrophoric liquids; Pyrorophoric solids Category 1 Danger P210, P222, P280, P302+P334,P370+P378, P422 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H413 May cause long lasting harmful effects to aquatic life Hazardous to the aquatic environment, long-term hazard Category 4
Precautionary statements:	P231+P232 Handle under inert gas. Protect from moisture. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P370+P378 In case of fire: Use … for extinction.